20130000431 has 2 divisors, whose sum is σ = 20130000432. Its totient is φ = 20130000430.

The previous prime is 20130000421. The next prime is 20130000439. The reversal of 20130000431 is 13400003102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130000431 is a prime.

It is a super-2 number, since 2×20130000431² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130000439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065000215 + 10065000216.

It is an arithmetic number, because the mean of its divisors is an integer number (10065000216).

Almost surely, 2^20130000431 is an apocalyptic number.

20130000431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130000431 is an equidigital number, since it uses as much as digits as its factorization.

20130000431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20130000431 its reverse (13400003102), we get a palindrome (33530003533).

The spelling of 20130000431 in words is "twenty billion, one hundred thirty million, four hundred thirty-one", and thus it is an aban number.